Sigma SD1 specifications

Format Interchangeable lens SLR camera
Image Sensor Size 23.5 x 15.7mm (1.5x APS-C)
Lens Mount SIGMA SA bayonet mount
Compatible Lenses SIGMA SA mount interchangeable lenses
Image Sensor Foveon X3 direct image sensor (CMOS)
Colour photo detectors • Total Pixels: 48MP
• Effective Pixels: 46MP (4800 x 3200 x 3 layers)
Aspect Ratio 3:2
Still Image Format Exif 2.3, DCF 2.0
Image recording format • Lossless compression RAW, 12 bit
• JPEG
File Size RAW
• High
• Medium
• Low
JPEG
• High
Fine
Normal
Basic
• Medium
Fine
Normal
Basic
• Low
Fine
Normal
Basic

Approx 45 MB (4704 x 3136 x 3)
Approx 24 MB (3264 x 2176 x 3)
Approx 12 MB (2336 x 1568 x 3)


Approx 10 MB (4704 x 3136)
Approx 5.6 MB (4704 x 3136)
Approx 4.2 MB (4704 x 3136)

Approx 5 MB (3264 x 2176)
Approx 2.7 MB (3264 x 2176)
Approx 2 MB (3264 x 2176)

Approx 2.5 MB (2336 x 1568)
Approx 1.4 MB (2336 x 1568)
Approx 1 MB (2336 x 1568)
Continuous shooting speed • 5 frames/sec (Image size High)
• 6 frames/sec (Image size Medium, Low)
Continuous buffer • Max 7 frames (Image size High)
• Max 14 frames (Image size Medium, Low)
White Balance • Auto
• Daylight
• Shade
• Overcast
• Incandescent
• Fluorescent
• Flash
• Custom
Color Mode • Standard
• Vivid
• Neutral
• Portrait
• Landscape
• B&W
• Sepia
ISO Range • Auto (100-800)
• 100
• 200
• 400
• 800
• 1600
• 3200
• 6400
Viewfinder Type Pentaprism SLR viewfinder
Viewfinder Frame Coverage 98% vertical, 98% horizontal
Viewfinder Magnification 0.95x (with 50mm lens at infinity)
Eye point 18mm
Diopter Adjustment Range -3.0 dpt - +1.5 dpt
Mirror Quick return
Depth of Field Preview Yes
Metering Modes • 77-segment Evaluative
• Spot
• Center Area
• Center-Weighted Average
Metering Range EV 1 to 20 (50mm F1.4 : ISO 100)
Shutter Type Electronically controlled focal plane shutter
Shutter Speed • 1/8000th – 30 sec
• Bulb (up to 30 sec, or 2 min in extended mode)
• Flash sync speed 1/180 sec
Exposure compensation ± 3EV (in 1/3 stop increments)
Auto Bracketing • 3 frames up to 3 EV interval (in 1/3 EV steps)
• 5 frames up to 1.7 EV interval (in 1/3 EV steps)
Auto Focus Type TTL phase difference detection system
AF Point 11 points twin cross sensor
AF Operating Range EV -1 to +18 (ISO100)
Focus Mode • Single AF
• Continuous AF (with AF motion prediction function)
• Manual
Focusing Screen Fixed, all matt screen
AF Point Selection • Automatic Selection
• Manual Selection
Active AF point indicator Superimposed in viewfinder
Focus Lock AF button is pressed or shutter release pressed halfway
AF Assist Light Yes (orange LED)
Built-in Flash • Manual Pop-up Built-in flash
• GN11
• 17mm lens angle covered
Flash Metering System S-TTL Auto Flash
Flash Compensation ± 3 EV (1/3 stop increments)
Flash Sync Terminal Available
Flash Connectivity Hot shoe (contact X, with dedicated flash linking contact)
LCD Monitor • 3.0" TFT colour LCD monitor
• 3:2 aspect ratio
• Approx. 460,000 dots
Storage Media Compact Flash (Type I, UDMA compatible)
Power • Li-ion Battery Pack BP-21
• Battery charger BC-21
• AC Adapter SAC-4 (Optional)
Connectivity • USB 2.0
• Video out (NTSC/PAL)
Dimensions • 146 mm (W) × 114 mm (H) × 80 mm (D)
• 5.7" (W) × 4.4"(H) × 3.1" (D)
Weight • 700g/24.7oz (without battery and card)
• 790g/27.9oz (including battery and card)
Optional accessories • AC Adapter SAC-4
• Remote Controller RS-31
• Cable Release Switch CR-21
• Electronic Flash EF-610 DG SUPER, EF-610 DG ST, EM-140 DG